EP 0408857 B1 19930929 - PROCESS FOR THE PREPARATION OF NONIONIC SURFACTANTS LOW IN ALKYLENE OXIDES AND 1,4-DIOXANE BY MEANS OF ALKALI METAL ALCOHOLATE CATALYST
Title (en)
PROCESS FOR THE PREPARATION OF NONIONIC SURFACTANTS LOW IN ALKYLENE OXIDES AND 1,4-DIOXANE BY MEANS OF ALKALI METAL ALCOHOLATE CATALYST
Publication
Application
Priority
DE 3923563 A 19890717
Abstract (en)
[origin: EP0408857A2] The alkoxidation products of amines, oils and fatty acids with alkylene oxides prepared by known processes have high alkylene oxide and 1,4-dioxane contents. This is undesired from possible toxicological points of view. The novel process should not have these disadvantages. For this purpose, a process is proposed in which the fatty alcoholates obtained in the alkoxidation by direct reaction of alkali metal hydroxide with fatty alcohols are used as catalysts. The products prepared by this process have residual contents of alkylene oxide of below 10 ppm and 1,4-dioxane of below 100 ppm.
IPC 1-7
C07C 67/26; C07C 69/734; C07C 213/04; C07C 217/08; C08G 65/26
IPC 8 full level
B01J 31/02 (2006.01); C07B 61/00 (2006.01); C07C 29/70 (2006.01); C07C 67/26 (2006.01); C07C 69/30 (2006.01); C07C 69/734 (2006.01); C07C 213/04 (2006.01); C07C 217/08 (2006.01); C07C 217/50 (2006.01); C08G 65/26 (2006.01)
CPC (source: EP US)
C07C 29/70 (2013.01 - EP US); C07C 213/04 (2013.01 - EP US); C08G 65/2648 (2013.01 - EP US); C08G 65/269 (2013.01 - EP US)
Designated contracting state (EPC)
BE CH DE ES FR GB IT LI NL
DOCDB simple family (publication)
EP 0408857 A2 19910123; EP 0408857 A3 19910821; EP 0408857 B1 19930929; DE 3923563 A1 19910124; DE 59002893 D1 19931104; ES 2044308 T3 19940101; JP H0352841 A 19910307; US 5194641 A 19930316
DOCDB simple family (application)
EP 90109418 A 19900518; DE 3923563 A 19890717; DE 59002893 T 19900518; ES 90109418 T 19900518; JP 18440590 A 19900713; US 69742391 A 19910509